IFFT inverted domain zones

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Andrea Muratori
Andrea Muratori 2021-5-17
评论： Andrea Muratori 2021-5-17
I'm trying to perform IFFT on data but it returns values "switched" in respect to the domain I'm using. As you can see in the image attached I'm trying to obtain something like the blue line but the IFFT returns me the red line (so the first half of the data should be the second half and vice versa). Is there an easy way to solve this issue?
I have the same problem with fft2 too.
  2 个评论
Walter Roberson
Walter Roberson 2021-5-17
perhaps you need fftshift(),
Andrea Muratori
Andrea Muratori 2021-5-17
That's right the function I was looking for. Thanks!

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